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UZRT025GA1TA

型号：

UZRT025GA1TA

品牌：

ZETEX[ ZETEX SEMICONDUCTORS ]

页数：

5 页

PDF大小：

169 K

下载PDF手册
ZRT025  
2.5V LOW POWERPRECISION REFERENCE SOURCE  
DESCRIPTION  
The ZRT025 is a m onolithic integrated circuit providing  
a precise stable reference voltage of 2.5V at 500␮A.  
The circuit features a knee current of 150␮A and  
operation over a wide range of tem peratures and  
currents.  
Th e ZRT0 2 5 is a v a ila b le fo r s u r fa c e m o u n t  
applications. This product offers a trim facility whereby  
the output voltage can be adjusted as shown in Fig.1.  
This facility is used when com pensating for system  
errors or setting the reference output to a particular  
value. When the trim facility is not used, the pin should  
be left open circuit.  
SOT223  
FEATURES  
• Trim m able output  
• Excellent tem perature stability  
• Low output noise figure  
• Available in two tem perature ranges  
• 1 and 2% initial voltage tolerance versions available  
• No external stabilizing capacitor required in m ost cases  
• Low slope resistance  
• No derating required at low tem peratures  
• SOT223 package  
SOT223  
Package suffix G  
Top view (pin 4 floating or  
connected to pin 2)  
ORDERING INFORMATION  
DEVICE  
TOL% OPERATING TEMP °C  
PARTMARK  
REEL  
SIZE  
TAPE  
WIDTH  
QUANTITY  
PER REEL  
ZRT025GC2TA  
ZRT025GC1TA  
ZRT025GA1TA  
2
1
1
-40 to 85  
-40 to 85  
-55 to 125  
ZRT025C2  
ZRT025C1  
ZRT025A1  
7”  
7”  
7”  
12m m  
12m m  
12m m  
1,000 units  
1,000 units  
1,000 units  
A grade  
C grade  
-55 to 125°C  
-40 to 85°C  
ISSUE 4 - DECEMBER 2003  
S E M IC O N D U C T O R S  
1
ZRT025  
ABSOLUTE MAXIMUM RATINGS  
PARAMETER  
S YMBOL  
LIMIT  
UNIT  
(1)  
Re ve rs e cu rre n t  
75  
m A  
Op e ra tin g te m p e ra tu re :  
A g ra d e  
T
OMP  
S TG  
-55 to 125  
-40 to 85  
-55 to 150  
°C  
°C  
°C  
C g ra d e  
S to ra g e te m p e ra tu re  
T
(1) Above 72°C this figure should be linearly derated to 25m A at 125°C  
POWER DISSIPATION (at T  
= 25°C unless otherwise stated)  
am b  
PACKAGE  
VALUE  
UNIT  
S OT223  
2
W
TEMPERATURE DEPENDENT ELECTRICAL CHARACTERISTICS  
S YMBOL PARAMETER  
INITIAL  
VOLTAGE  
TOLERANCE %  
GRADE A  
-55 TO 125°C  
GRADE C  
-40 TO 85°C  
UNIT  
m V  
Ou tp u t vo lta g e ch a n g e o ve r  
re le va n t te m p e ra tu re  
ra n g e (S e e n o te (a ))  
1 & 2  
1 & 2  
6.8  
22.5  
50.0  
2.7  
8.8  
∆V  
R
T V  
Ou tp u t vo lta g e te m p e ra tu re  
co e fficie n t (S e e n o te (b ))  
15.0  
15.0  
50.0  
ppm /°C  
C
R
ELECTRICAL CHARACTERISTICS (at T  
= 25°C unless otherwise stated)  
am b  
S YMBOL  
PARAMETER  
CONDITIONS  
MIN.  
TYP. MAX.  
UNIT  
V
Ou tp u t vo lta g e  
R
1% to le ra n ce (A1,C1)  
I =500␮A  
2.475 2.500 2.525  
V
R
2% to le ra n ce (C2)  
2.450 2.500 2.550  
V
%
⌬V  
Ou tp u t vo lta g e a d ju s tm e n t ra n g e  
R =100k⍀  
Ϯ5  
TRIM  
T
T ⌬V  
Ch a n g e in T V w ith o u tp u t a d ju s tm e n t  
2.5  
ppm /°C/%  
m A  
C
TRIM  
C R  
I
Op e ra tin g cu rre n t ra n g e  
Tu rn -o n tim e Tu rn -o ff tim e  
0.15  
75  
R
t
t
10  
0.3  
␮s  
o n  
R =1k⍀  
L
o ff  
e
Ou tp u t vo lta g e n o is e (o ve r th e ra n g e 0.1 Pe a k to p e a k  
50  
␮V  
n p -p  
to 10Hz)  
m e a s u re m e n t  
R
S lo p e re s is ta n ce  
I = 0.5m A to  
R
0.85  
2.0  
⍀
S
5m A  
(S e e n o te (c))  
ISSUE 4 - DECEMBER 2003  
S E M IC O N D U C T O R S  
2
ZRT025  
TYPICAL CHARACTERISTICS  
NOTES:  
(a) Output change w ith tem perature  
(c) Slope resistance (RS)  
Th e a b s o lu te m a xim u m d iffe re n ce b e tw e e n th e The slope resistance is defined as :  
m axim um output voltage and the m inim um output  
voltage over the specified tem perature range  
changeinVR  
RS =  
specificcurrentrange  
⌬V =V  
-V  
R
m ax m in  
⌬I=5-0.5=4.5m A (typically)  
(d) Line regulation  
(b) Output tem perature coefficient (T V )  
C
R
The ratio of the output change with tem perature to the  
specified tem perature range expressed in ppm /°C  
The ratio of change in output voltage to the change in  
input voltage producing it.  
∆VR x10 6  
VR x∆T  
TCVR  
=
ppm °C  
RS x100  
% / V  
VR xRSOURCE  
⌬T= Full tem perature range  
ISSUE 4 - DECEMBER 2003  
S E M IC O N D U C T O R S  
3
ZRT025  
SCHEMATIC DIAGRAM  
Figure 1:  
This circuit will allow the reference to be trim m ed over  
a wide range. The device is specified over a Ϯ5% trim  
range.  
ISSUE 4 - DECEMBER 2003  
S E M IC O N D U C T O R S  
4
ZRT025  
PACKAGE OUTLINE  
Controlling dim ensions are in m illim eters. Approxim ate conversions are given in inches  
PACKAGE DIMENSIONS  
Millim eters  
Inches  
Millim eters  
Min Max  
2.30 BSC  
4.60 BSC  
Inches  
Min Max  
DIM  
DIM  
Min  
–
Max  
Min  
Max  
0.071  
0.004  
0.033  
0.122  
0.013  
0.264  
A
A1  
b
1.80  
0.10  
0.84  
3.10  
0.33  
6.70  
–
e
0.0905 BSC  
0.181 BSC  
0.02  
0.66  
2.90  
0.23  
6.30  
0.0008  
0.026  
0.114  
0.009  
0.248  
e1  
E
6.70  
7.30  
3.70  
–
0.264  
0.287  
b2  
C
E1  
L
3.30  
0.90  
–
0.130  
0.0355  
–
0.146  
–
–
D
–
© Zetex plc 2003  
Europe  
Am ericas  
Asia Pacific  
Zetex plc  
Zetex Gm bH  
Zetex Inc  
Zetex (Asia) Ltd  
Fields New Road  
Chadderton  
Streitfeldstraß e 19  
D-81673 München  
700 Veterans Mem orial Hwy  
Hauppauge, NY 11788  
3701-04 Metroplaza Tower 1  
Hing Fong Road  
Oldham , OL9 8NP  
United Kingdom  
Kwai Fong  
Hong Kong  
Germ any  
USA  
Telephone (44) 161 622 4444  
Fax: (44) 161 622 4446  
hq@zetex.com  
Telefon: (49) 89 45 49 49 0  
Fax: (49) 89 45 49 49 49  
europe.sales@zetex.com  
Telephone: (1) 631 360 2222  
Fax: (1) 631 360 8222  
usa.sales@zetex.com  
Telephone: (852) 26100 611  
Fax: (852) 24250 494  
asia.sales@zetex.com  
Th e s e o ffice s a re s u p p o rte d b y a g e n ts a n d d is trib u to rs in m a jo r co u n trie s w o rld -w id e .  
This publication is issued to provide outline inform ation only which (unless agreed by the Com pany in writing) m ay not be used, applied or reproduced  
for any purpose or form part of any order or contract or be regarded as a representation relating to the products or services concerned. The Com pany  
reserves the right to alter without notice the specification, design, price or conditions of supply of any product or service.  
For the latest product inform ation, log on to w w w .zetex.com  
ISSUE 4 - DECEMBER 2003  
S E M IC O N D U C T O R S  
5
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